CVE-2026-56376CWE-416

ImageMagick - Heap Use-After-Free in Meta Coder

Medium · published June 23, 2026

CVSS v4.0
6.3
EPSS
0%
Percentile
23.7
In the wild
Unconfirmed
What it is

ImageMagick before 7.1.2-15 and 6.9.13-40 contains a heap use-after-free in the meta coder: when memory allocation fails, a single byte is written to a stale pointer. Remote attackers can trigger it by processing specially crafted image files, causing a denial of service.

The record
Technical detail
CVSS v4.0
6.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
EPSS
0.00320 · 23.7th percentile
Weakness
CWE-416 · Use After Free
Published
2026-06-23T12:13Z
EPSS history
Timeline
  • 23 JUN 12:13Z
    ImageMagick - Heap Use-After-Free in Meta Coder
    cvelistv5